hehry



F. G. HENRY.

SPRAY MEASURING DEVICE. APPLICATION man ocT. 1|, 191s.' nenswED FEB. zo.1919.

.1,31 6,721. Pmntedsept.23,1919.

Feminisme e. HENRY, or PHILADELPHIA,

CORPORATION, or BUFFALO, NEW Yo PENNSYLVANIA, ASSIGN'OR T0 BUJRKHAR'IRK, A CORPORATION 0F NEW YORK.

SPRAY MEASURING DEVICE.

Specication of Letters Patent.

Patented Sept. 23, 1919..

Application led October 11, 1915, Serial No. 55,279.y Renewed February20, 1919. Serial No. 278,238.

To all whom z't may concern Be it known that I, FERDINAND G. HENRY, acitizen of the United States, residing at Philadelphia, in the county ofPhiladelphia and State of Pennsylvania, have invented certain new anduseful Improvements in Spray Measuring Devices; and I do hereby declarethe following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the same.

This invention relates to spray measuring devices and has for an objectto provide a device for measuring a predetermined quantity of a iuid tobe applied by a spray, the spray being actuated from the same source ofenergy that the measuring and liftin of the fluid is accomplished.

A urther object of the invention is to provide a reservoir for holding aiuid, with an auxiliary reservoir communicating therewith with valves toclose such communication, and a discharge conduit leading to thespraying device with means for applying power to simultaneously actuatethe several parts to close the valve and open the spraying device.

A further object of the invention is to provide a valve for admittingenergy to the spray controlling valve, with -means for holding suchspray controlling valve open after the energy has ceased application.

With these and other objects in view the invention comprises certainnovel constructions, combinations and arrangement of parts as will behereinafter more fully described and claimed.

-In the drawings:

Figure 1 is a diagrammatic view of the several features entering intothis invention and in addition a conventional means for actuating theparts.

Fig. 2 is a sectional view through the auxiliary chamber and its valveaction.

Like characters of reference designate corresponding parts throughoutthe several views.

The improved spray controlling` device which forms the subject-matter ofthis application comprises a reservoir 1Q with an auxiliary reservoir 11communlcatlng therewith by a passage 12 which embodies a valve seat 13.

Within the auxiliary chamber 11 a plunger valve 14 is mounted toreciprocate held normally open by the spring 15. The upper end of theplunger 14 is provided with a piston 16 operating in a cylinder 17 sothat when air or other motive fluid is introduced through the pipe 18 itacts upon the top of the piston 17 to close the valve 14.'

A passage 19 is also provided located so that when the piston 16v isdepressed to close the valve 14 the pipe 18 will be in communicationtherewith to admit the motive fluid upon the top of the liquid containedin the chamber or auxiliary reservoir 11. A pipe 20 communicates withthe auxillary reservoir 11 near the bottom thereof in any approvedmanner as by the use of the nipple 21 so that when the air is admittedon the top of the liquid within the auxiliary reservoir 11 it serves toforce such liquid out through the tube 20.

To apply the compressed air or other motive fluid to the top of thepiston 16 and the liquid any approved form of pump is employed as shownat 22. The particular form of pump as disclosed forms no essential partof this invention, any means for supplying air under pressure servingthe purpose also a conventional means for actuating the pump is shown asthe lever 22, it being understood that such lever is only one of themany ways by' which the pump may be actuated, and as shown forms no partof the invention.

The pipe 20 leads to the spray nozzle 23 which depends from a housing 24in the form a cylinder in which a piston valve 25 reciprocates held inposition to normally close communication between the pipe 20 and thespray nozzle 23 by means of a spring 26. The piston valve 25 1s providedwith an annular furrow 27 which when moved to proper position completesthe communication between the pipe 20 and the spray nozzle 23. To movethe valve a pipe 28 communicates with the cylinder 24 and. with the pump22 through the branch 29. Interposed between the pipe 28 and the branch29 is a valve houslng 30 with a valve 31 mounted to reciprocate thereinand controlled by a lever 32 actuated from a cam 33. The cam 33 may beactuated by an)7 mechanism in timed relation with the other parts of thedevice. A means for such actuation is provided in the rack 33n pivotedto the lever 22", and intergeared with a pinion 33h carried by the cam33.

The valve 31 is provided with an anuular furrow 34 which when properlymoved forms communication between the pipe 28 and the branch 29. Thevalve 31 is also provided with a longitudinal groove 35 which is at alltimes in communication with the bleeder 36. The valve is held yieldinglyby the spring 37 with communication between the pipe 28 and branch 29closed. I

When a charge of liquid is to be delivered to the spray nozzle the pump22 is actuated through the mechanical means employed :hereby closing thelvalve 14 and admitting air on the top of the liquid within theauxiliary reservoir 11. Simultaneousl the lever 32 is actuated in timedrelation t rough the cam 33 and cam-actuating means to move the valve 31so that the furrow 34 completes the communication between the pipes 28and 29 therebyr admitting air to the piston valve 25 whereby to move thefurrow 24 to open communication between the pipe 2() and the s raynozzle 23. It is obvious, therefore, tiiat the liquid contained in theauxiliary reservoir 11 will be forced upwardly through the pipe 20 anddischarged through the s ray nozzle 23 by the force of the air upon tiieliquid in such reservoir. While this spray is being discharged the valve31 is again moved by the cam 33 and cam-actuating means so that the pipe28 is closed, traping the air in the rear of the piston 25 and oldingsuch valve open after the air has ceased acting upon the top of theliquid in the auxiliary reservoir 11 so that the column of liquidcontained in the pipe 20 and the spray nozzle 23 will be drawn back intosuch auxiliary reservoir. This is permitted by reason of the fact thatwhen the air is released from the valve 16 it is moved upwardly by thespring 15 and the passage 38 is then in communication with the auxiliaryreservoir permitting the escape of air to compensate for theintroduction of liquid contained in the ipe 20 and the spray nozzle 23.After su cient time has elapsed to permit the return of the entirecolumn of liquid the valve 31 is again moved to normal position by thespring 37 whereby the air pressure at the rear of the valve 25 isreleased permitting such valve to close and cut ott furthercommunication with the pipe 20.

I claim:

1. 'Ihe combination with a reservoir, of an auxiliary reservoircommunicating therewith by a valved passage, a pump adapted to supplypressure to close the valve, a bypass opened by the movement of thevalve, establishing communication from the pump to the auxiliaryreservoir, a nozzle, a conduit communicating with the nozzle and withthe auxiliary reservoir, a valve adapted to control the outlet from thenozzle, a second conduit between the auxiliary reservoir and the lastnamed valve, and a mechanically actuated valve interposed in said secondconduit adapted to control the passage of fluid through said conduit,said fluid governing the movement of the nozzle-controlling val ve.

2. The combination with a reservoir of an auxiliary reservoircommunicating therewith; a piston valve adapted to close communicationbetween the reservoirs; means to applyair pressure to the valve to closesuch communication and conduct air pressure to the auxiliary reservoir;a spray nozzle; a pipe communicating between the auxiliary reservoir andthe spray nozzle; and a valve controlling the spray nozzle actuated bythe Huid actuating the valve in the auxiliary reservoir.

3. The combination with a reservoir of an auxiliary reservoircommunicating therewith; a piston valve controlling the cornmunicationbetween the reservoirs; a conduit arranged to conduct air under pressureto the piston valve and to the auxiliary reservoir when the valve isclosed; a spray nozzle; a pipe leading from the auxiliary reservoir tothe spray nozzle; a piston valve located in the spray nozzle; a conduitforming communication between thel first mentioned conduit and thepiston valve; and a third piston valve interposed in the run of conduit.

4. The combination with a spray nozzle, and a piston valve controllingthe passage through said nozzle, of a valve controlled reservoircommunicating with the spray nozzle; means to conduct pneumatic pressureto the valve and reservoir; a branch communieating with the pneumaticconveying means and the piston valve; a valve introduced into the branchand adapted to control communicatioii therethrough; and mechanical meansto actuate the last mentioned valve.

5.y The combination with a reservoir, of a valve housing and spraynozzle forming a part thereof; a conduit leading from -the reservoir tothe valve housing, a valve mounted to reciprocate within the housing andhaving means for establishing and closing communication between theconduit and the spray nozzle; means to conduct pneumatic pressure to thereservoir to force liquid through the conduit; a branch leading from thepneumatic conveying means to the valve housing; a valve mounted toreciprocate in the run of the branch, and embodying means to establishcommunication through the branch, to close communication through thebranch and to establish communication of one section of the branch withthe atmosphere; and mechanical means for actuating the last mentionedvalve, said mechanical means being adapted to irst open communicationthrough the branch, next to close communication through the branch, andnext to open communication between a section of the branch and theatmosphere.

sure and trap it in the cylinder in the rear of the first mentionedvalve, and to further move the second mentioned valve to estab- 1. lishcommunication 4between the cylinder and the atmosphere.

In testimony whereof I aiiix my signature in presence of two Witnesses.

FERDINAND G. HENRY.

Witnesses:

CHAs. F. BURKHART, MARY A. MCLAUGHLIN.

